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A Murine Model of Subarachnoid Hemorrhage
Published on: November 21, 2013
Postoperative Systolic Blood Pressure as a risk factor for haematoma following thyroid surgery
Randall P Morton1,2, Alain C Vandal3,4
1Department of Otolaryngology-Head and Neck Surgery, Counties-Manukau Health, Manukau City, Auckland, New Zealand.
Objectives:
To examine potential factors that may predict development of postoperative haematoma following thyroid surgery, with particular attention to postoperative systolic blood pressure.
Design:
Retrospective, observational case-control study of patients undergoing thyroid surgery.
Setting:
Secondary General Hospital.
Participants:
Patients attending Counties Manukau District Health Board (CMDHB) between 2002 and 2012.
Main Outcome Measures:
Post-operative Haematoma formation that required re-exploration of the wound.
Results:
The overall rate of postoperative haematoma was 2.57% (16/621). Three patients bled immediately (i.e. after wound closure but while still on the operating table); 10 patients (1.6%) bled in the early postoperative period; and three others bled 24 h or more after surgery. The principal independent risk factor for postoperative haemorrhage that remained after multivariable regression was postoperative systolic blood pressure level. There was a 39% increase in risk of bleeding for every 10 points rise of highest blood pressure recordings in our patient population (OR 1.39; 95% CI = 1.09-1.8).
Conclusions:
This study identifies postoperative hypertension as significantly related to development of early postoperative haematoma. Cause for late post-thyroidectomy bleeding remains speculative.
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